Improved spring motor



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@stent @twine RICHARD GRIMM, 0F N'EW YORK, N.

Letters Patent No. 99,430, dated February 1, 1870.

- mrnovnn SPRING Moron The Schedule referred to :ln these Letters Patentand making part of the same.

`tion, in which drawing-- Figure 1 is a side view of the invention.

Figure 2 is au elevation of the apparatus, which shows a side view ofthe pulleys, to which motion is communicated by the motor.

Similar letters indicate corresponding parts.

This invention relates to a mechanical motor, in which the power isobtained from the tension put upon a spring; and p It consists in apeculiar construction and arrangement of pants, whereby simplicity andeconomy of construction are obtained in this class of motors.

The letterA designates a frame,`by which the apparat-us is supported,and in which the several shafts have their bearings.

To the upper part of the frame, ou its under side, I secu-re a stoutspring, B, of the description sometimes called a Cspring, composed ofany desired number of leaves, a b c d, according to the power required,the inner` leaves being successively shortened in length, and all beingsecured to the frame at their centre, by a'bolt, G.

The extremities of thespring B are drawn together `by cords D D, whichare fastened at one end to said extremities, while their other ends areattached to a winding-pulley, E, placed within the spring B, on aAshaft, F, which is turned by means of a crank G.

'The pulley E can be grooved, a'ud can be conical, or of the kind knownas a fusee; but l do not confine myself` to any mode of making saidpulley.

As the shaft Fis turned, the cords D D are wound up on tbe pulley, andthe ends of the spring B are drawn toward each other, so as to putthedesired teusion or compression on the spring.

Upon the shaft F I place the first wheel H of a train .of gear-wheels,by which I cause the resistance or power of the spring to becommunicated to the pul- I le 1s.

3The wheel H is loose on th.e shaft F, and is connected to said shaft bya springpaw1 and ratchet-wheel, in the usual manuel', which allows thespring to be compressed without motion being given to said wheel.

The otherwheels in the train, marked I J, are constructed and combinedin the mode` common in watch and clock movements, and the last wheel inthe train,

the wheel J, engages a worm, K, on the shaft L, onv

which is ixed a pulley, M, which will be driven at a speed commensurateto the tension of the spring, and the work to be performed by saidpulley. The power thus obtained is distributed to other shafts, by meansof bands and pulleys, as illustrated by the band and pulley N O, shownin ig; 2. I strengthen the spring B, and give it additional stiffnessandelasticity, by means of a counter or supplemental spring 1?,.which Iarrange below it, so as to form a counterpart thereto, the ends of thesupplemental spring being connected to the ends of spring B by means ofthe cord's D D.

What I claim as new, and desire to secure by `Let ters Patent, is-

The C-sp'rng B, the cords D D, and winding-pulley F, combined, arrangedand operating substantially as described, through a train ofgear-wheels, with a wormwheel, K, on the driven shaft L.

This specificatiou'signed by me, this 7th day of December, 1869.

RICHARD GRIMM. lVitnesses:

W, HAUFF, E. F KASTENHUBER.

